Even if you don’t have much (or any) experience with basic electrical circuits, [Afroninja] explains the concept of an H-Bridge motor controller in a clear, concise and easy way to understand.

[Chris] sent us this fantastic tutorial, introducing beginners to H-bridge motor drivers. While many of you will consider this stuff basic, those who are trying to expand from building only things … ...

The electric motors used in body motor systems are controlled using switches arranged in the shape of the letter “H.” This circuit configuration, shown in Figure 1, is called an H-bridge.

Our next step would be to make sure the servo operates freely. The cruise control system operates a mechanical linkage to the throttle body by using a vacuum motor called the cruise servo.

Power and protection To implement an H-Bridge on silicon, different aspects have to be taken into account. Issues to be considered are the total power consumption of the switch as well as over-current ...